Horn.



E. C. SGHMIDHOFER.

HORN.

APPLICATION FILED mums, 1911 1,022,509. Patented Apr. 9, 1912.

.W/T/VESSES if g/gunk COLUM BBBB LANOGRAPII cu., WASHINGTON. u. c.

ERNST C. SCHMIDHOFER, OF MINNEAPOLIS, MINNESOTA.

HORN.

Specification of Letters Patent.

Application filed March 25, 1911.

Patented Apr. 9, 1912'.

Serial No. 616,946.

To all whom it may concern Be it known that I, ERNST C. SCHMID- IIIOFER,a citizen of the United States, and residing at Minneapolis, in thecounty of Hennepin and State of Minnesota, have in vented a new anduseful Improvement in Horns, of which the following is a completespecification.

The main objects of this invention are to provide a horn having improvedmechanism adapted to provide tones of varying pitch; to provide a toywind instrument having very simple and durable means for varying itstone; and to provide a very cheap and simple device adapted for use as atoy to provide varying sounds, and which is equally well adapted to useas a sounding horn for vehicles.

The invention consists of the matters hereinafter described in thespecification and more fully pointed out and defined in the appendedclaims.

In the drawings: Figure 1 is a view partly in side elevation and partlyin section, of a device embodied in this invention. Fig. 2 is afragmentary, top plan view of thesame. Fig. 3 is a view partly insection and partly in side elevation of a slightly modified form of thedevice. Fig. 4 is a fragmentary, top plan view of the device shown inFig. 3.

As shown in said drawings, the body 1 of the horn is bell or funnelshaped to near its rear end, and the rear portion 2 is flattened at itssides to a more or less rectangular form. The rear end 3 is preferablyinclined upwardly and rearwardly from the bottom side, and in the topside of the rear portion is a wind a erture 4: through which the windenters the instrument.

Rigidly secured on the top of the portion 2, and extending from a pointforwardly of the aperture 4 to a point rearwardly of the end 3 is a box5, which is open at its rear end, and is provided with an opening in itsbottom which registers with the aperture 4.

Slidably mounted in the box 5 and adapted to overlap the aperture 4 fromits forward end is a vibrator plate 6 which is provided with anapertured flange 7 at its forward end in which is swiveled one end of apush rod 8. The push rod extends forwardly through an aperture in thefront end of the box, and, as shown in Figs. 1 and 2, has its forwardend connected with the crank of a crank shaft 9, which is journaled inbearings 10 on the body of the horn. The shaft 9 is provided on one endwith a handle 11 by means of which it may be rotated to shift thevibrator plate with respect to the aperture 4. In this construction theplate is adapted to remain where it is adjusted by the shaft, until theshaft is again turned.

In the construction shown in Figs. 3 and 1, the rod 8 is slidablymounted near its forward end in an ear 12 on the body of the horn, andis provided with a handle 18 at its forward end by means of which it maybe pushed rearwardly. Rearwardly of the car 12 the rod is provided witha stop or lug 14, and a coiled spring 15 is carried on the rod and abutsat one end against said stop and at its other end against the box 5.

The operation is as follows: When wind is blown into the open end of thebox 5 it passes through the aperture 4 into the body of the horn andcauses the rear end of the vibrator plate to vibrate and produce sound.As the plate is adjusted to or from the rear end of the aperture 4: itsvibrations are varied and the tone is changed. In the construction shownin Figs. 1 and 2, the shaft can be adjusted to set the plate to producethe desired tone, or the tone can be constantly varied by rotating theshaft backward and forward. In the construction shown in Figs. 3 and 4,the spring 15 normally holds the plate at its forward limit of movement,and the plate is shifted by rearward pressure on the handle 13.

Obviously many details of the device as shown may be varied or omittedwithout departing from the scope of the claims.

I claim:

1. A horn, comprising a body having a wind aperture at its rear end, avibrator plate slidably mounted over said aperture, a rod connected withsaid plate and adapted to move it with respect to the aperture and acrank shaft mounted on the body and connected with said rod.

2. A wind instrument, comprising a horn shaped body having an aperturenear its rear end, a box secured on the rear portion of the body andhaving an opening in its rear end and an opening registering with Inwitness whereof I have hereunto subsaid aperture, a vibrator plateslidably scribed my name in the presence of two witmounted 111 said box,a rod secured on sald nesses.

plate and extending through the forward ERNST O. SCHMIDHOFER. end of thebox, and a crank shaft journaled Vitnesses: on the body and connected tothe forward EDMUND P. EIGHHORN,

end of said rod. ARTHUR E. EICHHORN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

